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Finding the Fourth Proportional to 28,052.88, 42,083.52 and 8,329.12

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Solution

The fourth proportional to 28,052.88, 42,083.52 and 8,329.12 is: 12,494.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.88 : 42,083.52 = 8,329.12 : x
  2. Step 2: Convert to fraction form
    28,052.88/42,083.52 = 8,329.12/x
  3. Step 3: Cross multiply
    28,052.88x = 42,083.52 × 8,329.12
  4. Step 4: Simplify right side
    28,052.88x = 350,518,688.10
  5. Step 5: Solve for x
    x = 350,518,688.10/28,052.88
  6. Step 6: Final answer
    x = 12,494.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.